2021 GMC Yukon Complaint Log

Multiple people including my family are experiencing leaks in 2021 and newer GMC Yukons and Chevy tahoes. The back seatbelt is causing leaks, damaging the interiors. This can cause mold and health issues as well as electrical wiring issues causing accidents due to shortages occurring. Check Reddit on the number of complaints.

My vehicle fuel pump control module has failed. GMC has an open recall for my year, make and model however claims that my vehicle is not listed on the recall list that came out around 9/15/2025. I contacted GMC and they cannot provide me with a specific reason as to why it’s not included.

Vehicle would not start. Vehicle was towed to GMC dealership for inspection. Vehicle diagnosed with "Fuel Pump Driver Control Module" issue and needed to be replaced. This was a known issue for the 2021 GMC Yukon: GMC Service Bulletin: #24-NA-139 (Release Date August 2024) Emission Recall: N212332040 (Release Date September 2021) Emission Recall: N252516900 (Release Date September 2025) However, this VIN was not covered under the recalls and payment was required out of pocket. Recall(s) need to be expanded to include additional 2021 GMC Yukon VINs - including this one.

In January 2021, I purchased a new 2021 GMC Yukon Denali from a GMC dealership, which currently has only about 27,000 miles. To date, several recalls have been assigned and completed for my vehicle. per the websites for GMC and your agency. However, based on published recalls for my vehicle and a repair that is currently underway, I have reason to believe that my vehicle should have been subject to three prior recalls for which it was not [NHTSA ID Numbers: 20V735000 (Front Seat Bolts), 25V274000 (V8 Engine Failure, and 21V739000 (Fuel Power Control Module] Currently, the fuel pump control module is being replaced at a local GMC dealership because it failed last week and left my stranded at home. GMC issued a recall for this in 2021, but my vehicle was not included. Aside from risk and inconvenience, this is also costing my over $300 for a rental. Secondly, though my vehicle's make/model/year is cited in GMC's ongoing engine failure recall, which you are investigating, I have not received a recall notice. I note GMC's financial interest in minimizing vehicle's it recalls for such a costly repair. I have inquired with GMC and two of its dealers and have only received reiterations that my vehicle has not been subject to GMC's recall, which I already knew. I have not been given any explanation for why my Yukon has not been recalled despite my inquiries. Lastly, GMC issued a 2021 recall for front seat bolts; however, I did not receive a notice for my Yukon. I have occasionally felt slight movement in the driver's seat since buying the vehicle. Based on reason and facts, I am alleging that GMC appears to be artificially minimizing recalls and notifications for vehicles that are in fact impacted by defects in their vehicles.

I attempted to start my vehicle and it turned over and at the end of trying it sounded like it wanted to start. This repeated itself with no change. I contacted the dealer which I purchased it from and the service mgr said it was the fuel pump control module. Numerous 2021 Yukon had this problem and there is both a service bulletin and a recall for this part. N212332040. My vehicle is NOT on recall. I attempted to have it towed to the local Chevy dealer and was unable to as NO local tow company had the tool to put the transmission in neutral. They all wanted to drag it onto the trailer. Bad design that it can not be put in park if it’s not running. I purchased a replacement fuel pump control module part 13554821 from the dealership. I installed it and the problem was fixed. I have the defective part if needed. This would have been much more of an issue if it happened anywhere other than my house, especially with the inability to put he transmission in neutral !!

While driving on the and merging onto the highway, the check engine light and other alerts came on our 2021 GMC Yukon. There was a fluttering noise coming from the engine and the vehicle started to have decreased acceleration. We had to immediately exit the highway and park the vehicle. We then had to take our vehicle to our regular mechanic since GMC dealership was backed up and we needed the vehicle repaired. Our mechanic has identified the issue to be with the engine. The lifters in the engine broke which also damaged the cam shaft. This is a very costly repair. Our vehicle is four years old and out of warranty since we have 80k miles on our four year old Yukon. This problem with the GMC L84 5.3L V8 engines seems to be a common issue and other owners have posted their frustrations on various websites and there is currently no recall on this 5.3L engine. This is a safety issue and a recall should be issued like the one for the 6.2L engine. Why is there no recall for the 5.3L engine? A recall needs to be issued for the GMC L84 5.3L V8.

The contact owns a 2021 GMC Yukon. The contact received notification of NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling). The contact called the local dealer, who was unable to assist due to the parts not being available. The vehicle was not diagnosed or repaired. The manufacturer was contacted, but no assistance was provided. The contact had not experienced a failure.

My vehicle is currently in repair due to a known issue with GM. GM has put out a Technical Service Bulletin 20-NA-038 referencing a "well-known" problem with Cylinder 5 failing in 2021 5.3L and 6.0L engines. However, there has not been a recall. Ironically, there were other vehicles brought to the dealership (Sam Boswell GMC in Enterprise, AL) for the same repair on the same day as my vehicle. I'm hoping to get an initiative started for a recall

Premature failure of the telematics module resulting in inability to access emergency services and other safety-related features. Dealer confirmed the components failures are widespread. Check engine light came on as a result as well as inoperable navigation features that rely on the module connectivity.

Lifter and camshaft failure. Metal shards throughout the engine. Engine knocking and uncontrollable shaking. Safety was at risk of myself (driver) and two kids under the age of [XXX] while being broke down on a highway as vehicle was un-drivable. Reviewed by a Chevrolet dealership and Automotive repair shop both agreed on same repairs needed. No warning lights appeared before incident, multiple came up seconds after the problem occurred. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

I was read ended at a stop light. The other drive fell asleep. She was in a 3.25 ton dodge ram going 45-55 mph. She never touched her brakes. She pushed me into the car in front of me. Air bags never deployed . My car is totaled. The driver’s car hit so hard the front of her car was in my third row of seats. I was taken to the hospital for chest pains since the seatbelt was the only thing that saved me .

The contact owns a 2021 GMC Yukon. The contact received notification of NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling); however, the part to do the recall repair was not yet available. The dealer was contacted and confirmed that parts were not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the issue. The contact had not experienced a failure.

GM may be installing recalled engines into other vehicles through warranty replacements, avoiding recall accountability. I purchased a 2021 GMC Yukon built before recall N252494002. Before my ownership, the original engine failed and was replaced under warranty at 24,339 miles on 9/16/2024. The dealer verbally told me it was new, but it had salvage yard markings and no serial number—indicating it was used. This donor engine was likely from a vehicle later covered by the recall. GM appears not to track donor VINs for warranty replacements, meaning recalled engines can remain in service without repair. This creates a serious safety risk and allows defective engines to escape recall compliance. I urge NHTSA to require manufacturers to track and report donor VINs for used engines and major components installed under warranty so they remain subject to applicable recalls.

Dealership refused to inspect engine and provide new oil in regards to recall, they charged me $208.75 for oil that was supposed to be completed under recall L87 for GM

The contact owns a 2021 GMC Yukon. The contact stated that while attempting to start the vehicle, the vehicle started, and then the engine seized. The contact stated that the gear shifter failed to shift into the intended gear. There were no warning lights illuminated. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The contact received notification of NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling); however, the part to do the recall repair was not yet available. The manufacturer was not made aware of the failure. The failure mileage was approximately 31,000.

The contact owns a 2021 GMC Yukon. The contact stated that while driving at an undisclosed speed, there was an abnormal sound coming from the vehicle. No warning lights were illuminated. The vehicle was taken to the dealer, where it was confirmed that the failure was the result of an unrepaired recall. The contact was informed that the parts were not yet available. The contact had received notification of NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling); however, parts were not yet available. The manufacturer was not made aware of the failure. The failure mileage was approximately 81,000.

While driving the vehicle, the engine started to make a knocking noise and we experienced illumination of the check engine light. We also experienced engine performance issues with hesistation and reduced acceleration. We were able to take the vehicle to a GM dealer and it was determined that the lifters and crankshaft were defective and need to be replaced. There is a warranty out for 2021 GMC Yukon Denali vehicles that were manufactured less than a year after ours that have currently have a recall issued by GM for the same problems that we experienced. My wife and two young children, ages [XXX] and [XXX] , frequently ride in this car and catastrophic engine failures put their safety and livelihood at serious risk. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

the electronic solenoid in the valve body failed and it is available for inspection. it was struggling to shift on freeway at speeds of 65 mph and i would lose power. the vehicle was inspected by a gm dealership service man. there were no warning lamps when part started to fail, luckily when I parked the vehicle would not go into gear and then the warning light (check engine light) came on.

We experienced catastrophic engine failure consistent with the current outstanding recall. A GM dealership replaced the parts that failed (crankshaft and connecting rods) however, based on the recall that was issued, the serial number on our engine would qualify under the remedies indicated by GM for a complete engine replacement, however, our VIN number is not currently included in the recall even though our year, make and model for the car and engine are consistent with other recalled vehicles. The GM dealer indicated that the catastrophic engine failure was not due to any lack or neglected maintenance and felt that our vehicle should be included in the recall. My wife and two toddler children primarily use this vehicle and I have serious concerns about their safety and would like to feel confident about their use of the vehicle.

My GMC Yukon with 6.2 is using 1 quart of oil every 1000 miles. An oil consumption test was performed and documented with the dealer. In addition there is now a very rough idle while at a stop. The date on the engine build is just months ahead of the current recall.

The contact owns a 2021 GMC Yukon. The contact stated that while his wife was driving at an undisclosed speed, there was an abnormal ticking sound coming from the engine. There was no warning light illuminated. The following day, the contact's wife dropped the vehicle off at a dealer for a diagnostic test to be performed. Several days later, the contact was informed that the lower bearing in the crankshaft had failed, and the engine needed to be replaced. Upon investigation, the contact discovered NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling); and linked the failure to the recall. The dealer and the manufacturer were notified of the recall, and the contact was informed that the VIN was not included in the recall. The vehicle was not repaired and remained with the dealer. The failure mileage was 124,296.

ESC light came on, knocking noise started, blinking engine light, car started lagging. I was just getting onto freeway and my slow speed could have caused an accident. I have taken it to Lithia Cheverolet of Redding where they diagnosed it. All the warning lights came on as the problems happen all at once. This is message from the dealer/service center: Update: REMOVED CYLINDER HEAD AND INSPECTED CAMSHFT AND FOUND DAMAGE ON THE CYLINDER 8 LOBE.

My 2021 Yukon Denali (83264 miles), Fuel Pump Control Module failed causing car to lock up without any warning as my son was turning vehicle onto a main street. Car would not restart and wasn’t able to be put into Neutral to push it to side of road to a safer location. Police came and put cones around it until tow truck came the next morning. Tow operator got it onto a flatbed, which was difficult due to weight of the vehicle and not being able to put into Neutral (fortunately it was in 2wd which helped). It scares me to think what would’ve have happened if my son had been on the busy highway that he was planning to be on the next day or when it was on earlier that day. Vehicle is still at the dealership waiting on the replacement part which apparently is hard to get.

The contact owns a 2022 GMC Yukon. The contact stated while driving at an undisclosed speed, the vehicle stalled, and the engine seized. The contact attempted to restart the vehicle however, the vehicle failed to restart. There were several family members inside the vehicle during the failure. No warning lights were illuminated. A nearby driver attempted to jumpstart the vehicle; however, the vehicle failed to start. The vehicle was towed to an independent mechanic where it was diagnosed with a failed fuel pump modulator. The contact was referred to the dealer for assistance. The vehicle was then towed to the dealer where it was diagnosed with a failed fuel pump modulator. The contact was informed that the fuel pump modulator needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure and a case was filed. The contact referenced NHTSA Campaign Number: 21V739000 (Fuel system, Gasoline); however, the VIN was not included in the recall. The contact was advised to contact the NHTSA Hotline to report the failure. The failure mileage was approximately 52,000.

The contact owns a 2021 GMC Yukon. The contact stated while driving 40 MPH, the vehicle unexpectedly stopped, and the engine seized. The contact stated that there was not enough power from the engine to drive the vehicle to the shoulder of the road. No warning light was illuminated. While attempting to restart the vehicle, the vehicle failed to restart. In addition, the contact stated that his family were occupants of the vehicle during the failure. The contact stated that it was a frightening event for his family. The vehicle was towed to the dealer where it was diagnosed with engine failure. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The contact was informed that parts were unavailable to repair the vehicle. The contact received notification of NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling); however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the failure and a case was filed. The contact was advised to contact the NHTSA Hotline to report the failure. The failure mileage was approximately 89,000. VIN tool confirms parts not available.

knocking, banging, engine noises, illumination of the check engine light, engine performance issues at high rpm and fluttering at low rpm. oil consumption but not leaking. The engine needs to be replaced as the bearing is shot, cylinder 7 is shot. I believe this is directly related to NHTSA Recall #25V-274 and Manufacturer Recall #N252494000

The GMC is starting to loss power in the engine. GMC has not send me an appointment to inspect the engine. This vehicle is my only transportation to work and doctors appointment. This is not fair for a powerful company like GMC is not taking the ownership of the engine in this vehicle. I need action asap. Please assist. Thank you

The contact owns a 2021 GMC Yukon. The contact stated that while driving at various speeds, the vehicle failed to accelerate as intended while the accelerator pedal was depressed. The messages "Reduce Acceleration - Drive with Care", "Service Traction Control", and "Service ESC" were displayed on the instrument panel. The check engine and traction control warning lights were illuminated. The vehicle was taken to a local dealer, where it was diagnosed, and determined that the high-pressure fuel pump needed to be replaced. The vehicle was repaired at the owner’s expense; however, the failure reoccurred. The vehicle was taken back to the same local dealer, where it was diagnosed as possibly needing a low-pressure fuel pump failure and codes that needed to be cleared. The vehicle was repaired; however, the failure reoccurred. The vehicle was taken back to the same local dealer, where it was diagnosed as needing a high fuel pressure pump reset. The vehicle was repaired; however, the failure persisted. The vehicle was taken to the same local dealer, where it remained for further investigation. In addition, the contact related the failure to NHTSA Campaign Number: 21V739000 (Fuel System, Gasoline); however, the VIN was not included. The manufacturer was made aware of the failure. The failure mileage was approximately 56,751.

See attached document for complaint.

Vehicle engine seized. Approx 80,000 miles. After discussion with mechanic and dealership, this problem is common with GM L87 6.2L gas engines. Engine seize likely caused from defective crank bearings. No warning light, oil was in engine, vehicle recently serviced. No oil warning light on dash or temperature sensor on dash, or check engine light. Drove car on road trip - when arrived at destination parked car - few hours later went to start vehicle and wouldn't start. My VIN is not subject to recall - currently; however, many 2021 GM engines are recalled. Why wouldn't my 2021 engine be included in this recall? Or all customers notified of potential dangers? I frequently drive carpools with many children in the car - and an engine seizure at any point while driving puts me as driver and any passengers at risk. Vehicle currently being towed to dealer for 2nd diagnosis. First autobody shop diagnosed with engine seizure.

I received an official safety recall notice from GM (Recall Number N252494000) for my 2021 GMC Yukon due to a defect in the engine's connecting rod or crankshaft components. GM stated that this defect can cause engine failure and loss of propulsion, which significantly increases the risk of a crash. The notice also confirmed that parts to fix the issue are currently unavailable and provided no timeline for resolution. Despite the serious safety risk, GM and my local dealer have not offered a loaner vehicle while waiting for the repair, leaving me without a safe means of transportation. I am filing this complaint because I believe GM is not taking sufficient steps to protect customers from a known and documented safety hazard.

Vehicle: 2021 GMC Yukon Denali Component: Fuel System, Gasoline – Fuel Pump Control Module Incident Date: 7-10-2025 Mileage 61,263 Location: SR 2006 Coats, NC Summary of Complaint: While my wife was pulling out of our neighborhood in our 2021 Yukon Denali, the vehicle suddenly shut off while navigating a slight curve. It came to a complete stop in the roadway and could not be restarted. The engine would not crank, and the vehicle could not be shifted into neutral, making it impossible to move out of traffic. The Yukon remained disabled in the roadway for over an hour and ultimately had to be towed. Upon inspection, the dealership mechanic immediately identified the issue without even running diagnostics. He confirmed it was a failed fuel pump control module, which he stated is a common issue with this model. This failure represents a serious safety risk, particularly had it occurred on a high-speed interstate or in dense traffic. A sudden loss of power and inability to move the vehicle can result in dangerous roadside situations or collisions. GMC needs to address this recurring defect before it leads to more severe incidents or injuries. No warning lights or indicators appeared prior to the failure.

While driving the vehicle shut off, leaving my family stranded in the middle of traffic. It was a 90+ degree day and my family was stuck in a hot car unable to move off the roadway. This was very unsafe. No warning lights prior, the engine just stopped. After multiple times trying to restart the vehicle, the battery died. After waiting several hours, the vehicle was towed to the local dealership where it was determined that the driver fuel control module needed replaced and re programmed.

The contact owns a 2021 GMC Yukon. The contact stated that while driving at an undisclosed speed, there was an abnormal knocking sound coming from the engine compartment before the vehicle lost motive power. The check engine warning light was illuminated. The contact pulled over to the shoulder of the roadway, where the failure persisted. The vehicle returned to normal functionality, but the failure became a regular occurrence. The vehicle was taken to the dealer, who determined that the engine was extremely low on oil even after a recent oil change but was unable to determine the cause of the failure. The vehicle was not repaired. After investigating the failure, the contact related the failure to NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling), but the VIN was not included. The manufacturer was notified of the failure, a case was opened, and the contact was referred to the NHTSA Hotline for assistance. The failure mileage was 70,000.

Engine started missing out. After taken to dealer, cylinders 5 and 6 were filled with oil. New engine is needed, and is on nationwide back order as thousands of these are effected.

The contact owns a 2021 GMC Yukon. The contact stated that while driving at various speeds, there was an abnormal knocking sound coming from the engine. There was no warning light illuminated. Prior to the failure, the contact had received a postcard about a potential engine failure linked to the vehicle; however, the contact disregarded the notice. Due to the failure, the contact had the vehicle towed to the dealer. The dealer performed a diagnostic test and discovered metal shavings at the bottom of the engine oil pan. The dealer diagnosed the vehicle with engine failure. Upon investigation, the contact discovered NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling) and linked the failure to the recall. The manufacturer was notified of the failure and informed the contact that the VIN was not included in the recall. The contact was then referred to the NHTSA Hotline to report the failure. The vehicle remained in the possession of the dealer because parts to repair the vehicle were on backorder. The vehicle was not repaired. The failure mileage was approximately 93,000.

Purchased certified used from Davis Chevrolet in 2023 with multi-point inspection. Had motor replaced due to engine lifter failure in July 24, 2024. Electronic fuel module failed June 22, 2025. I have had multiple issues in between including alternator, belt/pulley system, rear end issues costing thousands of dollars all while paying a large amount monthly. The vehicle is giving constant issues and is not safe.

The oil level reads way below from what the engine percentage tell me. The vehicle Oil consumption happens to fast. My last two oil changes have been within a month

My Denali had no previous problems, I pull out of the driveway and I felt a hard Lunge forward without me pushing the gas. Almost like the car accelerated like a hard jerk. I pulled over because I thought I had been hit by another car. After checking no cars around, I pull back out and I felt it again a hard lunge forward. If someone would have been in front of me I would have hit the car in front of me without even pushing the gas. These GMC are dangerous and can’t trust my vehicle. After getting stranded on the road found out the transmission went out. My suv is now being repaired at GMC at my expense. Only had the vehicle 6 months. Recall the transmission.

Knocking coming from engine, seems like engine failure

Loss of some power. No haul power.

Problems with the engine shifting gears stalling delayed or won’t engage hard shifting while it’s in motion something’s going on with the engine we’ve called several and had it serviced times of times to ask them what was going on with it in Newport Oregon you can fill it still when you drive. The problem still is not fixed. It’s been happening since we purchased it took it in right away. we’ve asked if our Vin number has come up for a recall repairs we are worried for safety and are currently parking in the car because the dealership is unable to fix what is wrong with the car. They’re telling us there is something wrong and are aware of the recall and won’t fix the problem dealership refuses to take the car they don’t want it without the recall fixed due to safety concerns. you can definitely fill it when you drive I’m not exactly sure what the other issue if with the sounds it’s making when the issue keeps happening but it’s scary There is the recall on it. They are not taking into consideration or the seriousness of the situation and the safety of lives.

The contact owns a 2021 GMC Yukon. The contact stated while driving 68 MPH, the vehicle stalled. There was no warning light illuminated. The contact was able to pull over to the shoulder of the road. The vehicle failed to restart and was pushed into a parking lot, where a mobile mechanic determined that the battery and the starter needed to be replaced. The parts were replaced; however, the failure persisted. The mechanic determined that the engine had seized. The vehicle was towed to Pruneda Auto Mechanic, where it was diagnosed that the engine had seized and needed to be replaced. The vehicle was not repaired. The contact related the failure to NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling); however, the VIN was not included in the recall. The dealer and the manufacturer were not notified of the failure. The failure mileage was unknown.

Had the engine replaced at 10,342 and the engine just went out again at 85,343 Old engine #N1210061cu8x0090 replaced at 10,342 Faulty replacement engine #t2211729l92x0913 I show this engine is part of the recall from but GMC is telling me my engine isn’t part of this recall and won’t cover my faulty engine that just went out.

For whatever reason our 2021 GMC Yukon Denali is not listed in the current 2025 GMC motor recall including cams and lifters and accompanying parts. While driving our truck about a mile from the house the vehicle began seizing and shaking (almost as if we had blown several tires); we immediately pulled over and accessed. Called Dealership and had truck towed there immediately. We are told that it needs cams and lifters and that b/c our VIN does not pull up a recall that the repairs will cost ~$9800.

On 05.29.25 my 2021 GMC Yukon Denali with 24,000 experienced engine issues and ultimately a total failure. While driving at 65 miles an hour the engine light began blinking and a thumping/knocking noise began on the front passenger side of the vehicle. I was 1 mile away from the GM dealership and went there immediately. They called me two hours later confirming the engine failure and that it would have to be replaced. They stated, however, the engine is experiencing a national backorder. No timeline has been provided for the engine to be received or replaced. I am curious to know if the new engine will come from the same engine group that is currently having issues, and if this can happen again.

A valve in the transmission is sticking causing a loss of power, engine light warnings to flash, and hard gear shifts from park to drive or reverse. First occurred on 5/25/25, went to the dealer service department on 5/26/25. Part still not available and it’s been sitting at the dealership since.

Recall N212332040 Car lost power and stalled on highway, at highway speed Dangerous Recall on fuel pump PCM did not cover this year vehicle based on VIN.

The contact owns a 2021 GMC Yukon. The contact stated that while accelerating, the vehicle jumped and hesitated while accelerating until the vehicle exceeded 20 - 25 MPH. The contact stated that at 1,500-2500 RPM, the failure recurred. There were no warning lights illuminated. The contact stated that while looking online, the contact discovered information about NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling) with a similar failure. The dealer was contacted, and it was confirmed that the VIN was not included in NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling). An appointment was scheduled for the vehicle to be diagnosed. The vehicle was not repaired. The manufacturer was informed of the failure, and it was confirmed that the VIN was not included in NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling); because the manufacturing date was 3 months after the date for the vehicles listed under the recall. The manufacturer referred the contact to the NHTSA Hotline to report the failure. The failure mileage was 75,000.

We are back on shop for lifter replacement for the 3rd timeand possibly more once they open the project. Valve springs replaced and lifters.